Parts and functions of ear and eye

What is the name and function of A?

Lens

Absorbs, focuses and directs incoming light to the retina. (Directs the image to the retina)

What is the name and function of B?

Cornea

The protective transparent part of the eye that covers the pupil and iris. Provides sharp and clear vision

What is the name and function of C?

Pupil

Hole in the center of the eye in which light enters (size is controlled by the iris)

What is the name and function of D?

Iris

Muscle that contracts or dilates to allow more or less light into the eye

What is the name and function of E?

Retina

The neural tissue lining the inside back surface of the eye. Translates physical information into neural information.

What is the name and function of F?

Optic Nerve

Carries neural impulses from the eye to the brain

What is the name and function of G?

Blind Spot

In this area there are no light-sensitive cells so this part of your retina can't see.

What is the name and function of H?

Fovea

Where visual sharpness in greatest. Needed for driving and reading

What is the name and function of 1?

Ear flap (Pinna)

Funnels sounds waves

What is the name and function of 2?

Ear Drum

Conducts sound waves to ossicles

What is the name and function of 3?

Ossicles

Conducts sound waves to cochlea

What is the name and function of 4?

Cochlea

Tranduces sound wave (by sterocilla)

What is the name and function of 5?

Brings action potential to the brain (Specifically the thalmus)

Damage to the inner ear causes what?

Sensorineural hearing loss

Hearing damage to the middle ear causes what?

Conduction Hearing loss.

What parts of the ear are in the middle ear?

Ossicles, ear drum, ear canal, tiny bones

What parts of the ear are in the inner ear?

cochlea and auditory nerve

Transduction

the process of converting external stimuli (like light, sound, or touch) into neural signals that the brain can interpret (Conversion of one form of energy to another.)

Where does transduction occur in the eye?

Retina—Specifically the rods and cones

Where does transduction occur in the ear?

Cochlea—-Specifically the stereocilla

Sensation

The input our brain recieves from our enviroment (physical)

Perception

The way the brain makes sense of the input (Psychological)

What is Innententional blindness? Is it perception or sensation?

individuals fail to notice obvious but unexpected objects or events in their visual field when their attention is engaged with another task, even if the unexpected stimulus is within their spatial focus of attention. Ex. Texting while driving creates blindess to road

This is perception